FEATURES GUIDE

General Features
Features Guide 37
Button, Single-CO (S-CO)
Description
A Single-CO (S-CO) button is a CO line access button. This allows the digital proprietary
telephone user to access a specific line by pressing an S-CO button. An incoming call can be
directed to an S-CO button.
Conditions
• An S-CO button provides CO Line status.
• Incoming calls appear on the digital proprietary telephone, when an extension is assigned
as the incoming call destination and an S-CO and/or L-CO button is assigned.
• Immediate, delayed, no ringing or no incoming call (disable) can be selected on an
extension-CO line basis.
• The digital proprietary telephone user can choose a desired ringing tone type for the S-CO
button by System or Station Programming.
Programming Guide References
• [005] Flexible CO Button/PF Key Assignment
• [400] CO Port Connection Assignment
• [605-606] Outgoing Permitted CO Line Assignment — Day/Night
Features Guide References
• Answering, Direct CO Line
• Line Access, Direct
• Line Access, Individual
• Ringing Tone Selection for CO Buttons
User Manual References
• 2.2.1 Basic Calling
• 2.3.1 Answering Calls
• 4.1.3 Customising the Buttons